gcleaner | 6462bf51b4d88d6013656804c21a535c2d27c09d7dcbdf1f212b10f116c324e5

Analysis

max time kernel
58s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2023, 02:13

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General

Target
2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe
Size 1.9MB
Sample230327-cnrslabc38
SHA256 2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0
MD5 cbd8b305092414c89d7c5e2b0c4975ea
SHA1 b0800cb3962a493f783805fe8e00692fcef8edaa
SHA512 f098a54828773789293762958f2330f5f00e9e91472f57386954436c204675d8e48b063ce1e3fd7a93a9b1c8cbc97adb588c30fcf1d5cad263655a59fa1aaff7
SSDEEP 49152:EGlJfs4PMjsf2rhEjfh6aOjHAK4EuSK5dlLYp:5IrhUfgjgZEroPYp
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	FRec323.exe

Executes dropped EXE 3 IoCs

pid	Process
1268	is-79JAA.tmp
4416	FRec323.exe
4848	LvLiV3.exe

Loads dropped DLL 1 IoCs

pid	Process
1268	is-79JAA.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-OBVLD.tmp	is-79JAA.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-159PV.tmp	is-79JAA.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\data\is-LOEL0.tmp	is-79JAA.tmp
File opened for modification	C:\Program Files (x86)\FJBsoftFR\FRec323\unins000.dat	is-79JAA.tmp
File opened for modification	C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe	is-79JAA.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-V7BQ6.tmp	is-79JAA.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-K9A8D.tmp	is-79JAA.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\is-AP1SB.tmp	is-79JAA.tmp
File created	C:\Program Files (x86)\FJBsoftFR\FRec323\unins000.dat	is-79JAA.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
4440	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4416	FRec323.exe
4416	FRec323.exe
4416	FRec323.exe
4416	FRec323.exe
4416	FRec323.exe
4416	FRec323.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4440	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 1268	1228	2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe	84
PID 1228 wrote to memory of 1268	1228	2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe	84
PID 1228 wrote to memory of 1268	1228	2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe	84
PID 1268 wrote to memory of 4416	1268	is-79JAA.tmp	85
PID 1268 wrote to memory of 4416	1268	is-79JAA.tmp	85
PID 1268 wrote to memory of 4416	1268	is-79JAA.tmp	85
PID 4416 wrote to memory of 4848	4416	FRec323.exe	89
PID 4416 wrote to memory of 4848	4416	FRec323.exe	89
PID 4416 wrote to memory of 4848	4416	FRec323.exe	89
PID 4416 wrote to memory of 4576	4416	FRec323.exe	94
PID 4416 wrote to memory of 4576	4416	FRec323.exe	94
PID 4416 wrote to memory of 4576	4416	FRec323.exe	94
PID 4576 wrote to memory of 4440	4576	cmd.exe	96
PID 4576 wrote to memory of 4440	4576	cmd.exe	96
PID 4576 wrote to memory of 4440	4576	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe
"C:\Users\Admin\AppData\Local\Temp\2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\is-5OHG2.tmp\is-79JAA.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5OHG2.tmp\is-79JAA.tmp" /SL4 $801CE "C:\Users\Admin\AppData\Local\Temp\2a8fdd6a69c03c5a536b9c560a65b6d25056c69416e952c51e9a3de4ed2fa2f0.exe" 1760136 52736
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1268
- - C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe
    "C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4416
  - - C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\LvLiV3.exe
      4⤵
      Executes dropped EXE
      PID:4848
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec323.exe" /f & erase "C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4576
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec323.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:4440

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

FRec323.exe

Path C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe
Size 2.2MB
SHA256 5e137dbeafaf1a2d93a1fc9e9e8ef8fdbaf7b1b090e1d2b364e54c7676db5272
MD5 22a7ef539d268eb69323d0b438e868d5
SHA1 19a4e1b13693f56735b19f447c191dd6613b5761
SHA512 6fe638f4606ef7c2e30eb48882cca119ce2ac8e58a2a3321f3252ebaa156ce4a1591040605b73960b365711a8858ede41e502ee6b6e1625cc985f635bca4e1e0
SSDEEP 49152:p1rU2vcw/WFauNjnffTdKBmCXFQ0NfXz9HeZr:pFU2vcw/WFauxTdKBmOFQsXz9H8r
MD5 SHA1 SHA512 SSDEEP

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FRec323.exe

Path C:\Program Files (x86)\FJBsoftFR\FRec323\FRec323.exe
Size 2.2MB
SHA256 5e137dbeafaf1a2d93a1fc9e9e8ef8fdbaf7b1b090e1d2b364e54c7676db5272
MD5 22a7ef539d268eb69323d0b438e868d5
SHA1 19a4e1b13693f56735b19f447c191dd6613b5761
SHA512 6fe638f4606ef7c2e30eb48882cca119ce2ac8e58a2a3321f3252ebaa156ce4a1591040605b73960b365711a8858ede41e502ee6b6e1625cc985f635bca4e1e0
SSDEEP 49152:p1rU2vcw/WFauNjnffTdKBmCXFQ0NfXz9HeZr:pFU2vcw/WFauxTdKBmOFQsXz9H8r
MD5 SHA1 SHA512 SSDEEP

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dll[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G1ORIWBN\dll[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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is-79JAA.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-5OHG2.tmp\is-79JAA.tmp
Size 659KB
SHA256 ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
MD5 63bdf487b26c0886dbced14bab4d4257
SHA1 e3621d870aa54d552861f1c71dea1fb36d71def6
SHA512 b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
SSDEEP 12288:t23Blmb8xrPg373zHIA6XRiywi68ro6kVKhN9q4QpRH/Tp1xG:wBlmb8xrPg373zHIA62KcTVbp1xG
MD5 SHA1 SHA512 SSDEEP

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is-79JAA.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-5OHG2.tmp\is-79JAA.tmp
Size 659KB
SHA256 ca5e816fa95cbcd2a880f2c319d3ddf09686e96ee633af63a396969e5e62335a
MD5 63bdf487b26c0886dbced14bab4d4257
SHA1 e3621d870aa54d552861f1c71dea1fb36d71def6
SHA512 b433e540c9da175efdd09d44be39c563176046d89aa03edcc43e3582aa1f180e40e283503d152a46e07d4e77f8fa18b76118e425961b507ad5ca3864c39a7c40
SSDEEP 12288:t23Blmb8xrPg373zHIA6XRiywi68ro6kVKhN9q4QpRH/Tp1xG:wBlmb8xrPg373zHIA62KcTVbp1xG
MD5 SHA1 SHA512 SSDEEP

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_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-V6A6G.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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LvLiV3.exe

Path C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\LvLiV3.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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LvLiV3.exe

Path C:\Users\Admin\AppData\Roaming\{9e74baef-b191-11ed-b7c8-806e6f6e6963}\LvLiV3.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/1228-179-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1228-133-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1228-199-0x0000000000400000-0x0000000000413000-memory.dmp

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memory/1268-148-0x0000000000690000-0x0000000000691000-memory.dmp

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memory/1268-180-0x0000000000400000-0x00000000004B4000-memory.dmp

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memory/1268-198-0x0000000000400000-0x00000000004B4000-memory.dmp

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memory/4416-181-0x0000000000400000-0x000000000143E000-memory.dmp

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memory/4416-174-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/4416-197-0x0000000000400000-0x000000000143E000-memory.dmp

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memory/4416-166-0x0000000000400000-0x000000000143E000-memory.dmp

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memory/4416-165-0x0000000000400000-0x000000000143E000-memory.dmp

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